# [−][src]Struct cortex_m::peripheral::NVIC

    pub struct NVIC { /* fields omitted */ }

Nested Vector Interrupt Controller

## Methods

### `impl NVIC`[src]

#### `pub fn request<I>(&mut self, interrupt: I) where
I: Nr,` [src]

Request an IRQ in software

Writing a value to the INTID field is the same as manually pending an interrupt by setting the corresponding interrupt bit in an Interrupt Set Pending Register. This is similar to `set_pending`.

This method is not available on ARMv6-M chips.

#### `pub fn clear_pending<I>(&mut self, interrupt: I) where
I: Nr,` [src]

Deprecated since 0.5.8:

Use `NVIC::unpend`

Clears `interrupt`'s pending state

#### `pub fn disable<I>(&mut self, interrupt: I) where
I: Nr,` [src]

Disables `interrupt`

#### `pub fn enable<I>(&mut self, interrupt: I) where
I: Nr,` [src]

Enables `interrupt`

#### `pub fn get_priority<I>(interrupt: I) -> u8 where
I: Nr,` [src]

Returns the NVIC priority of `interrupt`

NOTE NVIC encodes priority in the highest bits of a byte so values like `1` and `2` map to the same priority. Also for NVIC priorities, a lower value (e.g. `16`) has higher priority (urgency) than a larger value (e.g. `32`).

#### `pub fn is_active<I>(interrupt: I) -> bool where
I: Nr,` [src]

Is `interrupt` active or pre-empted and stacked

#### `pub fn is_enabled<I>(interrupt: I) -> bool where
I: Nr,` [src]

Checks if `interrupt` is enabled

#### `pub fn is_pending<I>(interrupt: I) -> bool where
I: Nr,` [src]

Checks if `interrupt` is pending

#### `pub fn pend<I>(interrupt: I) where
I: Nr,` [src]

Forces `interrupt` into pending state

#### `pub fn set_pending<I>(&mut self, interrupt: I) where
I: Nr,` [src]

Deprecated since 0.5.8:

Use `NVIC::pend`

Forces `interrupt` into pending state

#### `pub unsafe fn set_priority<I>(&mut self, interrupt: I, prio: u8) where
I: Nr,` [src]

Sets the "priority" of `interrupt` to `prio`

NOTE See `get_priority` method for an explanation of how NVIC priorities work.

On ARMv6-M, updating an interrupt priority requires a read-modify-write operation. On ARMv7-M, the operation is performed in a single atomic write operation.

# Unsafety

Changing priority levels can break priority-based critical sections (see `register::basepri`) and compromise memory safety.

#### `pub fn unpend<I>(interrupt: I) where
I: Nr,` [src]

Clears `interrupt`'s pending state

### `impl NVIC`[src]

#### `pub fn ptr() -> *const RegisterBlock`[src]

Returns a pointer to the register block

## Trait Implementations

### `impl Deref for NVIC`[src]

#### `type Target = RegisterBlock`

The resulting type after dereferencing.

#### `fn deref(&self) -> &Self::Target`[src]

Dereferences the value.

### `impl Send for NVIC`[src]

## Auto Trait Implementations

### `impl !Sync for NVIC`

## Blanket Implementations

### `impl<T, U> TryFrom<U> for T where
U: Into<T>,` [src]

#### `type Error = Infallible`

The type returned in the event of a conversion error.

#### `fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>`[src]

Performs the conversion.

### `impl<T> From<T> for T`[src]

#### `fn from(t: T) -> T`[src]

Performs the conversion.

### `impl<T, U> Into<U> for T where
U: From<T>,` [src]

#### `fn into(self) -> U`[src]

Performs the conversion.

### `impl<T, U> TryInto<U> for T where
U: TryFrom<T>,` [src]

#### `type Error = <U as TryFrom<T>>::Error`

The type returned in the event of a conversion error.

#### `fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>`[src]

Performs the conversion.

### `impl<T> Borrow<T> for T where
T: ?Sized,` [src]

#### `fn borrow(&self) -> &T`[src]

Immutably borrows from an owned value. Read more

### `impl<T> BorrowMut<T> for T where
T: ?Sized,` [src]

#### `fn borrow_mut(&mut self) -> &mut T`[src]

Mutably borrows from an owned value. Read more

### `impl<T> Any for T where
T: 'static + ?Sized,` [src]

#### `fn type_id(&self) -> TypeId`[src]

Gets the `TypeId` of `self`. Read more

### `impl<T> Same<T> for T`[src]

#### `type Output = T`

Should always be `Self`

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